Power-down modem
CA 1324836 C · Owner: Compaq Computer Corporation · Inventors: Mccrocklin, Lee F.; Gross, Allen E.; Saadeh, Said S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A modem capable of three modes of operation; a normal mode, a reduced power mode responsive to a control signal from a function controller within the modem and a further, reduced power mode responsive to a control signal from the computer. The function controller monitors activity within the modem and applies or removes power transparently as required to exit or enter the first reduced power mode. The control signal from the computer enables the modem to enter or exit the further reduced power mode, in which no modem functions are available.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.